Measurement of the incidence of acute rheumatic fever: a methodological study.
D000208:Acute Disease; D001291:Attitude of Health Personnel; D004812:Epidemiologic Methods; D006326:Heart Auscultation; D006760:Hospitalization; D006801:Humans; D007398:Interpersonal Relations; D009205:Myocarditis / Q000453:epidemiology; D010361:Patients; D010414:Pennsylvania; D010820:Physicians; D012213:Rheumatic Fever / Q000453:epidemiology*; D012494:Sampling Studies; D013997:Time Factors